Honing or grinding machine.



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HONING 0R GRINDING MACHINE. APYLICATION FILED MR. 20. i914- wmg@ C.SCHUMACHER. HONING 0R GHINDING MACHINE. APPLlcATloN FILED APR. zo. 1914.

Patented' Feb. 5 19H8.

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HoIIING on GRIIIDIIIG MACHINE.

gpvggu y APPLICATION FILED APR. 2o. |914. Patented Feb. 5, 19181 sSHEETS-sneer a. Z0

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C. SCHUMACHE-R.

Home 0R GRINDING MACHINE.

APPLICATION FILED APR. 20. |914.

C. SCHFUMACHER.

HONING 0H GHINDING MACHINE.

APPLICATION FILEUAPR. 2o. 1914.

31.@259799, Patented Feb. 5, 1918.

5 SHEETS-SHEET 5.

` :Il "E @t l ETE@ STATES 'PATENT FFKCE.

COMAD SCHUMACHEB, 0F LYNNBROOK, NEW YORK, ASSIGNOR T0 AUTO STRG?COMPANY, .A CORPORATION OF NEW YORK.

HONING OR GRINDING MACHINE.

Specification of Letters Patent.

Patented Feb. 5, 1916i.

Application tiledv April 20, 1914. Serial No. 833,030.

or Grinding Machines, of which the follow' ing is a specification.

My invention pertains to improvements in machines for automaticallyhonin 0r grinding the edge of a metalv strip, wiich strip may be movedsubstantially continuously along the working face of a honing orgrinding disk or disks.

An object of my invention is to provide improved means to enableopposite sides of an edge of a metal strip, that is drawn continuouslythrough the machine, to be alter- Vnately acted upon by honingl orgrinding disks; a further object of the invention is to enable thehoning or grinding disk or disks to be held against the edge of thestrip in a resilient manner, so as not to bear too rigidly thereon, andalso to enable suci resilient pressure to be regulated at wil Furtherobjects and characteristics of my invention will be more fullyhereinafter set forth and then pointed out in the claims.

Reference is to be had to the accompanying drawings forming part hereof,wherein,

Figure 1 is a front elevation, partly in section, illustrating means forsupporting and actuating the honing or grinding disks;

Fig. 2 is an enlarged section substantially on the line 2, 2, in Fig. 6;

Fig. 3 is an enlarged section substantially on the line 3, 3, in Fig. 7;

Fig. 4 is a detail of a spacer hereinafter referred to;

Fig. 5 is an enlarged view, partly in section, of parts shown in Fig. 1;

Fig. 6 is an enlarged detail plan` view, illustrating a honing orgrinding disk in operative relation to the strip and its guide;

Fig. 7 is a detail side view of Fig. 6, reduced;

Fig. 8 is a detail plan view of part of the means for reciprocating thehoning or grinding disks;

Fig. 9 is `a section on the 1ine'9, 9, in

Fig. 8, but showing the parts centrally disposed;

Fig. 10 is a section on the line 10, 10, in Fig. 9;

' Fig. 11 is a section substantially on the line 11, 11, in Fig. 10;

Fig. 12 is a plan view of a portion of the machine;

Fig. 13 1s a detail of devices for moving the strips to be honed orground;

Fig. 14 is an edge view thereof;

Fig. 15 is a sectional detail, enlarged, of means for rotating the honecarrying shaft;

Fig. 16 is a section on the line 16, 16, in Fig. 15; and

Fig. 17 is a section substantially on the line 17, 17, in Fig. 12.

Similar numerals of reference indicate corresponding parts in theseveral views.

In the accompanyin drawings the numeral 1 indicates any sultable frameor base upon which members 2 are universally mounted, which memberscarry shafts 3 that are equipped with suitable honing or grinding disks4 shown opposed to each other, and between which the strip of metal orthe like 5 to be sharpened passes. Members 2 are shown forked andprovided with bearings for shafts 3, which shafts are adapted to rotateand slide, the shafts being shown provided with pulleys 6, 6EL forrotating them. Members 2 are shown swivel'ed upon studs 7, (Figs. 1 and5), having lock nuts 8 to secure the said members in positions ofadjustment around said studs. T he studs 7 project from blocks 9 thatare shown located 1n eyes 10 on support 10a secured on frame 1, bolts 11passing through said blocksand eyes for holding said blocks in setpositions of adjustment. By this means members 2 may be set to bring thedisks 4 in desired angular relation to the strip 5 to be honed orsharpened. The members 2 may be raised and lowered by means ofinterchangeable spacers or shims 12 adapted to be placed between members2 and blocks 9, (Figs. 1, 4 and 5). The pulleys 6, 6 have sleeves ortubular extensions 13 in bearings on members 2 and slidably receivingshafts 3, said sleeves having projections or keys 14 adapted to enterslots 8 in shafts 3 (Figs. 5, 15 and 16). The projections 14 are shownsecured by screws to collars 15 detachably secured upon extensions 13,whereby shaft 3 may be rotated by and with pulleys 6, 6 and may slidetherethrough.

The grinding disks 4 are shown secured in suitable socket members 16having threaded studs 17 to screw into threaded sockets 18, in the endsof shafts 3, for detachably securing said parts together. The members 2are vshown provided with forked rearward extensions 19, one of whichextensions is shownl provided with bearings for a driving shaft 20,(Fig. 12). Said extensions are also shown provided with bearings forreciprocative rods or shafts 21, which rods or'shafts are shown coupledtogether by a rod 21a and universal joints 21", whereby one of the rods21 may reciprocate the other while in angular relation thereto. An arm19a aids in guiding a rod 2l. Shaft 20 is shown provided with means forreciprocating rods 21. I have shown shaft 20 provided with disk 22,having a guideway 23, receiving a screw 25 (Figs. 9, 10 and 11). At 26is a block or crank pin guided for vertical adjustment in guideway 23and having threads meshing with screw 25 whereby said block may beadjusted relatively to the axis of shaft 2O and be retained in setposition. Screw 25 is shown provided with a flange 2,5a fitted to rotatein recesses in block 22 and in a clamping piece 27, shown secured todisk 22, whereby said screw may be clamped in set position. At 28 isindicated a block (Figs. 9 and 11) shown provided with a bore 2 8HLfreely receiving a crank pin 29 secured to block 26, the block 28 beingadapted to reciprocate in a vertical guideway 30 in a block 31 securedupon one of the rods 21. Said block 3l is shown split or divided at 32,so as to be clamped tightly by screw 33 on rod 21. Disk 22 may bedetachably secured to shaft 20 in any suitable manner. I have shown adisk 34 (Figs. 9 and 11), secured upon the threaded end ofshaft 20 by ascrew 35, and entering a recess 22 in the face of disk 22, screws 36serving to secure disks 22 and 34 together. By the means described thecrank piece 26 and crank pin 29 may be adjusted radially andeccentrically with respect to the axis of shaft 20, whereby when saidshaft rotates, the rods 21 will be reciprocated to the desired extent.The crank pin 29, although shown vsubstantially centrally disposed inFig. 9, is to be adjusted eccentrically according to the movementdesired to be imparted to rods- 21. An arm 19a having a hole receivingrod 21 serves to aid in guiding the latter (Fig. 12).

Rods 21 are shown provided with arms 37 (Fig. 12), which may be split ordivided and provided with screws 38 for clamping them in desiredpositions upon said rods. Said arms are provided with boxes or the like39 containing suitable bearings 40 receiving shafts 3 respectively,stops or nuts 41 screwed upon shafts 3 coactin with said arms (Fig. 5).Said nuts and earings are shown located within vbushings or sleeves 42secured in boxes 39. Said bushings may be externally threaded 4to engageinternal threads on the boxes 39, as shown in Fig. 5, and said boxes maybe split or divided, as at 39a, and clamped by screws 43 tightly uponsaid bushings or sleeves. At 44 are shown suitable springs coiled uponshafts 3 and pressing at one end against the corresponding bearing 40and at the other ends upon stops or collars 45 adapted to be secured inset positions upon' shafts 3 by screws 46. When rods 21 move to theright in Fig. 12, shafts 3 will be correspondingly moved, and the disk 4at the left of said figure will be moved into engagement with the strip5 by the interposed spring 44 then pushed by lefthand arm 37 againstcollar 45, so that said disk will bear against strip 5 resiliently, andat such time disk 4 at the righthand side of Fig. 12 will be moved awayfrom strip 5, because the corresponding bearing 40 acting with adjacentnut 41 moves the corresponding shaft 3 outwardly. When arm 37 at theleft first starts to ,move in a direction away from strip 5, thecorresponding disk 4 will remain temporarily in' engagement with strip5,\due to the pressure of spring 44, until the correspending shaft 3 andbearing 40 encounter nut 41, whereupon shaft 3 will be drawn to fullydisengage disk 4 from strip 5. Corresponding action occurs, at theproper time, with the righthand devices. Such freedom of slidingmovement of shaft 3 in boxes 39 permit disks 4 to be maintained inoperatinv contact with strip 5, through the medium 0I spring pressure,without causing said disks to bear on said strip unduly, and enablingrelatively light pressure of the disks upon the strip, when desired, asfor honing the edge of the strip. By preference, collar 45 1s spacedslightly from bearing 47 when disk 4 bears against strip 5, to insurethe desired spring pressure of the disk upon said strip and yet toprevent disk 4 from being unduly pressed in the direction of strip 5 byspring 44 in case such strip should break adjacent to said disk. Theparts described above may be similar on each side of the machine.

Strip 5 is adapted to be drawn through a longitudinally disposed guide50, shown comprising a pair of opposed plates 50El secured together byscrew 50", and having reduced inner faces 51 providing a longitudinalspace through which strip 5 may be drawn (Figs. 2 and 3). In the spacebe, tween the faces 51 of guide 50 are shown suitable relatively thinstrips of metal 52, providing liners between which strip 5 Slides. `Saidliners may be secured to plates 50 by passing the ends of said liners.out-

wardly through slots 53 in said plates, as shown at 52, and securingsaid ends of the liners by screws 54 entering the end portions of saidplates (Fig. 6). Adjacent the upper edges of plates 50a, where the disks4 are adapted to engage the edge of strip 5, said plates are shownreduced or cut away at 50 for freedom of movement of said disks (Fig.6), and the ed e portions of said plates are reduced or cut own at 50d(Fig. 7), to permit disks' 4 to engage the opposite sides of strip 5 atits upper edge, the liners being also suitably cut away adjacent therecesses 501.` Strip 5 may bear on rests 50a (Fig. 7) in the spacebetween plates 50a. By the means described the strip 5 will be suitablyfirmly retained, as it is drawn through the machine, at the part wherethe disks 4 operate upon the strip. The liners may be replaced asrequired. The guide 50 is shown supported in slotted members 55 carriedby support or base 10a and screws 56 (Fig. 5) carried by members 55enable guide 50 to be secured in desired position. Screws 57 carried bymembers 55 enable guide 50 to be set in vertical adjustment.

The disks 4 may rotate within a suitable housing or receptacle 58(Fig. 1) wherein a suitable lubricating or abrading solution may beretained for engagement by disks 4.

One or more sets of grinding devices described may be provided in amachine, and where two or more of such sets of grinding devices areprovided, they may be arranged in tandem, substantially as illustratedin Fig. 17. Any suitable means may be provided for simultaneouslyrotating pulleys 6, 6, in the same'direction, as well as driving pulley60 secured on shaft 20. I have shown the machine provided with a maindrive shaft 61 (Fig. 17) having a suitable drive pulley 62 over whichpasses a belt 63. In the arrangement shown in Fig. 17 the belt passesfrom the far side of pulley 63 up over pulley 6, down under idle pulley64, thence under idle pulley'65, up over pulley 6, thence down under atightening pulley 66, and thence over idle pulley 67 to the under sideof pulley 62. Pulley 66 is shown mounted to rotate upon an arm 68,pivoted at 69 concentric with pulley 67 and weighted at 70,'whereby thedesired tension of belt 63 may be maintained, and slack in the belt'will be automatically taken up. Where two or more sets of honing orgrinding devices described are provided in one machine they each may beprovided with driving belts and pulleys as described, and thecorresponding driving pulleys 62 may be secured upon the same shaft 61(Fig. 17). At 71 is a belt shown passing over pulley 60 and under apulley 72 on shaft 61. The ratio of the driving pulleys will be such asto give the desired speed of rotation to disks 4 with respect to thereciprocative movements .im-

parted through pulley 60 to said disks with ,frame 1 (see Figs. 13 and14). By means of -a suitable lever 76 operating a strap 7 6a the disk 75(which may be loosely mounted) may be adjusted with respect to disk 73to provide the desired pressure between said disks against strip 5 forfeeding the latter. Shaft 74'is Vshown provided with a worm wheel 77,shown meshing with a worm 78 provided with a sprocket wheel 79 receivinga chain 80 from a suitable drive sprocket for causing strip- 5 to bedrawn between disks 4.

By means of my improvements the strip 5 may be drawn between the disks 4at a desired speed while said disks 4 reciprocate back and forth intoengagement with the same edge portion of. said strip, and with theldesired resilient pressure thereagainst, whereby said edge of strip 5may be honed or ground as desired. The angles at which disks 4 arepresented to strip 5 determine the bevel of the cut-ting edge producedupon said strip, and by means of the universal mounting of members 2said disks may be set with respect to strip 5 in accordance with thecharacter of the edge to be honed or ground upon said strip. The disksmay be readily replaced and their angles respecting the strip 5 may bereadily adjusted in accordance with the working faces of the disks.

It will be understood that by a single adjustment radially oreccentrically of the crank pin 29 both disks 16 will be always movedequally and jointly to the same extent toward and from the strip. Whereheavy grinding is to be done the springs 44 may be removed and thecollars 45 may be adjusted along shafts 3 into firm contact with theboXes 39, so that the disks 4 will positively bear on the strip or workto be ground. The springs 44 are useful for honing and relatively lightgrinding.

While I have shown and described what may be termed two sets of honingor grinding devices, located on opposite sides of strip 5, it will beunderstood that one or both of said sets of devices may be used at onetime, and also that a machine 'may be made having but one of said setsof grinding devices where but a single edge of a stripv is to be ground.While I have referred to a strip 5, which may be of suitable metal, suchas that suitable for razor blades, it will be understood that myimprovements may be adapted to hone or grind other forms of materiaChanges may be made in the details of construction and arrangements ofparts set forth within the scope of the appended claims, withoutdeparting from the spirit of the invention. y

Having now described my invention what I claim is 1. The combination ofa shaft, means to secure a disk thereto, means to support a strip withrelation to said disk, means separate from the strip to rotate said diskpositively with relation to the strip, means to slidably support saidshaft for axial movement, and means to cause said disk to bearresiliently against said strip.

2. The combination of a shaft, means to slidably and rotatively supportsaid shaft, a disk carried by said shaft, means to support a stripadjacent said disk, a spring, and means to positively push said springto cause said spring to push said shaft and disk toward the strip toretain the disk resiliently pressed against the strip, said meansserving to withdraw the shaft and disk away from the strip.

3. The combination of a shaft, means to rotatively and slidably supportthe shaft, a disk carried by the shaft, means to support astrip adjacentto the disk, a stop on the shaft, a spring bearing against said stop,and means coacting with said shaft and spring for moving the shaftaxially by means of the spring toward the strip and for bodilyretractlng the shaft in a direction axially away from said strip.

4. The combination of a shaft means to rotatively and slidably supportthe shaft, a disk carried by the shaft, means to support a stripadjacent to the disk, a stop on the shaft, a spring bearing against saidstop, an arm having means rotatively receiving said shaft and coactingwith said spring to resiliently push the shaft in one direction, meanson the shaft to coact with the last named means to retract the shaft ina direction away from said strip, and means to positively rotate theshaft and disk with relation to the strip. A

5. The combination of a shaft, means to rotatively and slidably supportthe shaft, a disk carried by the shaft, means to support a stripadjacent to the disk, a stop on the shaft, a spring bearing against saidstop, an arm having a bearing receiving said shaft adapted to push saidspring to slide the shaft in the direction of said strip,v and a stop onsaid shaft to coact with said bearing to retract the shaft in adirection away from the strip.

6. The combination of a support for a strip, a shaft carrying a diskadjacent to said strip, a member carrying said shaft, means for slidablyand rotatively supporting said shaft upon said member, means tovreciprocate the shaft axially within said member to move the diskaxially toward and from the strip, and means for universally supportingsaid member for adjustment of said disk and shaft in desired angularrelation to said strip.

7. The combination of means for supporting a strip, disks located onopposite sides of said strip, means for supporting and rotating saiddisks, and means to alternately present said disks against said strip,and alternately withdraw the disks from the strip.

8. The combination of means for supporting a strip, disks located onopposite sides of said strip and opposing each other, means forsupporting and rotating said disks, and means to cause said disks tobear resiliently against said strip and alternately withdraw the disksfrom the strip.

9. The combination of means for supporting a strip, opposing diskslocated on opposite sides of said strip at an angle to each pther and tosaid strip, means for supportlng and positively rotating said disks, andmeans to cause said disks to bear resiliently alternately on oppositesides of said strip and alternately Withdraw the disks from the strip.

l0. The combination of means for supportinga strip, disks on oppositesides of said sti-1p, shafts carrying said disks, means for slidably androtatively supporting said shafts, means for resiliently pressing saiddisks against said strip, and means for reciprocating said shaftssimultaneously alternately in opposite directions.

l1. The combination of means for supporting a strip, disks on oppositesides of said strip, shafts carrying said disks, means for, slidably androtative] supporting said shafts, stops on said sha ts, springs toengage said stops, arms having means movably receiving said shafts,means to cause said arms to push said springs to cause the disks toresiliently engage the strip, stops on the shafts to be moved by saidarms to withdraw the disks from the strip, means connecting said armsfor operating them conjomtly, and means for reciprocating said arms.

12. The combination of means for supporting a strip, disks' on oppositesides of said strip, shafts carryingr said disks, means for slidably androtatively supporting said shafts, stops on said shafts, springs toengage said stops, arms having means movably receiving said shafts,means to cause said arms to push said springs to cause the disks toresiliently engage the strip, stops on the shafts to be moved by saidarms to withdraw the disks from the strip, rods connected with saidarms, means for universally connecting said rods, and means forreciprocating said rods.

incassa 13. The combination of4 means for supporting a strip, diskslocated on opposite sides of said strip, shafts carrying said disks andprojecting therefrom in opposite directions and at an angle to eachother, means to slidably and rotatively support said shafts, and meansto reciprocate sald shafts simultaneously and alternately in oppositedirections.

14. The combination of means for supporting a strip, disks located onopposite sides of said strip, shafts carrying said disks and projectingtherefrom in opposite directions and at an angle to each other, membersadjustably supported and provided with means for rotatively and slidablysupporting said shafts, and means to reciprocate said shaftssimultaneously.

15. The' combination of means for supportin a strip, disks located onopposite sides o said strip, shafts carrying said disks and projectingtherefrom in opposite directions and at an angle to each other, membersadjustably supported and frovided with means for rotatively and slida lysupporting said shafts, 4and means to resiliently move said shaftsalternately toward said strip and alternately remove the disks fromcontact with the strip.

16. The combination of means for supporting a strip, disks on oppositesides ofthe strip, shafts carrying said disks, members on opposite sidesof said strip rotatively and slidably supporting said shafts, saidmembers having bearings, rods guided in said bearings and operativelyconnected together, means to reciprocate said rods, arms connected withsaid rods, and means for causing said arms to reciprocate said shafts.

'17. The combination of means for supporting a strip, disks on oppositesides of the strip, shafts carrying said disks, members on oppositesides of said strip rotatively and slidably supporting said shafts, saidmembers having bearings, rods guided in said bearings and operativelyconnected together, means to reciprocate said rods, arms connected withsaid rods, means for causing the arms to reciprocate said shafts, saidshafts havin stops, springs to push said stops, said -arms aving meansrecelving said shafts respectively and coacting with said springs topush said shafts toward said strip, and means on said shafts to beoperated by said arms for sliding said shafts outwardly.

18. The combination ,of means for supporting a strip, disks on oppositesides of the strip, shafts carrying said disks, members on oppositesides of said strip rotatively and slidably supporting said shafts, saidmembers having bearings, rods guided in said bearings and operativelyconnected together, arms connected with said rods, means to cause saidarms to reciprocate said shafts in opposite directions, one of saidmembers car rying a shaft, and means interposed between said shaft andone of said rods for reciprocating the latter.

Y 19. The combination of means for supporting a strip, disks on oppositesides of the strip, shafts carryingL said disks, members on oppositesides of said strip rotatively and slidably supporting said shafts, saidmembers having bearings, rods guided in said bearings and operativelyconnected together, arms connected with said rods, means to cause saidarms to reciprocate said shafts in opposite directions, one of saidmembers carrying a shaft, a disk carried by said shaft and having aguideway, a block in said guidewa means to adjust said block radially osaid disk and to hold the block in set positions, a block carried by oneof said rods and provided with a guideway, a crank-piece slidable insaid guideway, and means for operatively connecting said crank piecewith said first named block.

20. The'combination of means for supporting a strip, disks on oppositesides of the strip, shafts carrying said disks, members on oppositesides of said strip rotatively and slidably supporting said shafts, saidmembers having bearings, rods guided in said bearings and operativelyconnected together, arms connected with said rods, means to cause saidarms to reciprocate said shafts in opposite directions, one of saidmembers carrying a shaft, a disk carried by said shaft and provided witha transverse guideway and threads, a block in said guideway and havingthreads opposed to the first named threads, a screw meshing with saidthreads, means to rotatively support said screw on said disk, a blocksecured to one of said arms and having atransverse guideway, a crankiece slidable in said guideway, and means or operatively connecting saidcrankpiece with the iirst named block.

21. The combination of means for'supporting a strip, disks on oppositesides of vthe strip, shafts carrying'v said disks, members on oppositesides of said strip rotatively and slidably supporting said shafts, saidmembers having earings, rods guided in said bearings and operativelyconnected together, arms connected With said rods, means to cause saidarms to reciprocate said shafts in opposite directions, one of saidmembers carrying a shaft, a disk carried by said shaft and provided witha transverse guideway and threads, a block in said guideway and havingthreads opposed to the first named threads, a screw meshing with saidthreads, means to rotatively support said screw on said disk, a blocksecured to one of said arms and having a transverse guideway,'a crankpiece slidable in said guideway, and a stud carried by the first namedblock, said crank piee having a bore freely receiving said stu 22. Thecombination of a pair of disks, means to rotatively support said diskswith their faces opposing and at an acute angle to each other, a guidefor a strip between said disks, said guide having a longitudinallydisposed space for said strip, said guide having a reduced portionopposed .to said disks to expose the strip thereto, means to supportsaid guide, and means to reciprocate said disks alternately toward andfrom said strip.

23. The combination of a pair of disks, means to rotatvely support saiddisks, with their faces opposing and at an acute angle to each other, aguide for a strip between said disks, said guide having a longitudinallydisposed space for said strip, said guide having a reduced portionopposed to said disks to expose the strip thereto, lining strips in saidspace, means adjacent to the ends of said lining strips to secure themto said guide, means to support said guide, and means to reciprocatesaid disks alternately toward and from said strip.

24. The combination of a pair of disks, means to rotatively support saiddisks, a guide fora strip between said disks, said guide having alongitudinally disposed space for said strip, said guide having areduced portion opposed to said disks to expose the strip thereto,lining strips in said space, said guide having slots, the ends of saidlining strips being) bent laterally in said slots, screws carried y theguide bearing against said strips, means to support said guide, andmeans to move said disks toward and from said strip.

25. The combination of a support for a strip, a pair of disks, shaftscarrying said disks, means to support said shafts, pulleys to rotatesaid shafts, a drive pulley, idle pulleys, and a belt passing under thedrive pulley, thence over one of the first named pulleys, thence underone or more idle pulleys, thence over another of the first namedpulleys, and thence under the drive pulley.

26. The combination of `a support for a strip, a pair of disks, shaftscarrying said disks, means to support said shafts, pulleys to rotatesaid shafts, means to reciprocate saidshafts and disks simultaneously inopposite directions, and a drive pulley, idle pulleys, an arm, a pulleycarried by said arm, a pulley 67, and a belt passing under the drivepulley, over one of the first named pulleys, under one or. more idlepulleys, over the other first named pulley, under the pulley on saidarm, over pulley 67, and under the drivev pulley.

27. The combination of means for supporting a strip, disks located onopposite sides of said strip, means for supporting and rotating saiddisks, means to simultaneously move said disks respectively tlre onetoward .and the other away from said strip, and

means to permit a single adjustment in the last named means to vary theextent of movement of said disks relatively to the strip.

28. The combination of means for supporting a strip, disks located onopposite sides of said strip, means for supporting and rotatingv saiddisks, a drive shaft, an eccentric pin, means for adjustably connectingsaid pin with said shaft, a rod operatively connected with said pin, andmeans connecting said rod with both of said disks for operating saiddisks together.

Signed at New York city in the county of New York, and State of NewYork, this 17th day of April, A. D. 1914.

CONRAD SCHUMACHER.

Witnesses:

MARIE F. WAINWRIGHT, T. F. BoUnNn.

